Multiplication principle - math problems
Number of problems found: 187
- Hockey
Hockey match ended 8:2. How many different matches could be?
- PIN - codes
How many five-digit PIN - code can we create using the even numbers?
- Medals
In how many ways can be divided gold, silver and bronze medal among 21 contestant?
- 2nd class combinations
From how many elements you can create 4560 combinations of the second class?
- Menu
On the menu are 12 kinds of meal. How many ways can we choose four different meals into the daily menu?
- Disco
On the disco goes 12 boys and 15 girls. In how many ways can we select four dancing couples?
- Subsets
How many are all subsets of set ??
- Possible combinations - word
How many ways can the letters F, A, I, R be arranged?
- Pins 2
how many different possible 4 digits pins can be found on the 10-digit keypad?
- Dice
We throw five times the dice. What is the probability that six fits exactly twice?
- Olympics metals
In how many ways can be win six athletes medal positions in the Olympics? Metal color matters.
- Combinatorics
The city has 7 fountains. Works only 6. How many options are there that can squirt ?
- Seven
Seven friends agree to send everyone a holiday card. How many postcards were sent?
- Tricolors
From the colors - red, blue, green, black and white, create all possible tricolors.
- Two-element combinations
Write all two-element combinations from elements a, b, c, d.
- Bits, bytes
Calculate how many different numbers can be encoded in 16-bit binary word?
- Tokens
In the non-transparent bags are red, white, yellow, blue tokens. We 3times pull one tokens and again returned it, write down all possibilities.
- 2nd class variations
From how many elements you can create 2450 variations of the second class?
- The gems
The jeweler selects 4 gems for the ring. It has rubies, emeralds and sapphires. How many options does he have?
- Dice
We throw 10 times a play dice, what is the probability that the six will fall exactly 4 times?
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